Rotary pump



Aug. 24 1926. 1,597,411

J. R. KINNEY ROTARY PUMP Filed Dec. 1, 1924 5 Sheets-Sheet 1 log Aug.'24 192 1,597,411 J. KINNEY ROTARY PUMP Filedfilg 19 24 3 Sheets-Sheet 2 I'IIIIIIIIIIIII 1 IIIIIIIIIIII Aug. 21 1926.

1 J. R. KINNEY Filed Dec. 1. 1 24 3 Sheets-Sheet 5 fill vim

Patented Aug. 24, 1926.

JUSTUS E. KINNEY, 0F JAMAICA PLAIN, MASSACHUSETTS.

Application filed December tion, one preferred form thereof is illustrated in the drawings, this form having been found to give satisfactory and reliable results although it is to be understoodthat the various instrumentalities of which the invention consists can be variously arranged and organized and the invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described except as required by the scope of theappended claims.

(if the drawings,

Fig. 1 represents a longitudinal vertical section of a pump embodying the principles of the present invention, on line 1, 1, on

Pi a.

Tig. 2 represents a transverse section of the same, on line 2, 2, on Fig. 1.

Fig. 3 represents a section through the gear casing on line 3, 3, on Fig. 1.

Fig. 1 represents a plan of the revoluble bladed members, drawn to an enlarged scale, and

Fig, drcpresents a perspective of one of said bladed members.

Similar characters indicate like parts throughout the several figures of the drawings.

In the drawings is a casing having two semi-cylindrical chambers 11 formed there in, said chambers communicating as shown in Fig 2 of the drawings.

The ends of the casing are closed by means of the end plates 12 secured thereto by bolts orscrews 13.

The casing '10 is provided with an inlet passage 14 through which liquid may be drawn into the chambers 11 and subsequently discharged therefrom through an outlet assage 15, preferably alined with said inst assa e 14.

T 1e en plates 12 have outwardly extending hubs 16 in the outer ends of which are stuiling boxes 17 of usual construction.

These end plates 12 have. recesses in their so that it would be impossible for any of ROTARY PUMP.

1, 1924. Serial No. 758,087.

inner faces in which are disposed the annular members 18, 19, the outer -member 18 having reduced portions extendin into and fitting a recess in the outer face 0% the inner member 19. I

This inner member 19 is provided with an annular flange 20 extending inwardly be yond the inner face of the end plate 12.

Each end plate12 is also provided with an outward extension 21 on the outer endof which is mounted bearings 22 for the revoluble shafts 23 extending through the chambcrs-lland centrally disposed therein.

:One extension 21 has secured to the end thereof a ear casing 24 which encloses the gears 25 w 1011 are mounted on the shafts 23 and mesh so that said shafts 23 will rotate together in opposite direction when rotary movement from any suitable source is imparted to either shaft 23.

Between the stuffing boxes 17 and the annular members 19 are annular passages 26 surround ng the shafts 23, these passages 26 having pipes 27 extending therefrom to the inlet passage 14.

Should any liquid being pumped leak from the chambers 11 past the annular members 18, 19, it will enter these recesses 2d and the suction in the inlet passage 14 Wlll cause sa d liquid to be drawn into said passage.

The passage of any liquid outwardly from these recesses and around the shafts 23 will be effectually taken care of b stufiing boxe 17 3 ans f the It will be noted that the shaft bearings 22 are entirely separated from the stufiin boxes 17 at the outer ends of the hubs 16 i the material being pumped to enter the bearngs 22 and interfere with the proper workmg thereof.

This is essential for the material being pumped is not always of a lubricating character but of a character which would inure any bearings into which it might be permitted to enter.

Each shaft 23 is provided with a peripheral flange 28 bearing against the inner ends of the members 18, 19, the pur ose of the flange being to prevent arfy en movement of said shafts. This flange 28 fits into a recess in the outer face of. one of "the cylindrical memhere 29 mounted. u on the shafts 23 and splined thereto by the key 30. y

The members 29 are'designed to operate in pairs and as many pairs may be mounted f upon the shafts 23 as may be desired.

. These members 29 have openings there- 7 mon'iber's 29.

through in which are inserted rods 31-, the ends of which are upset, thereby locking to other all ofthe members on each shaft.

Vhen thus locked together the ends bear against the inner faces of the end. plates 12 1 and the annular flanges 20 fit accurately into the recesses in the outer faces of the end g from the eriphery of the dy portion a plurality blades 32 havinolined sides not their cylindrical ll he hlsdes 32 ere'angularly disposed upon the members 29 the angle thereof to the zzis of rotation of each member being approsimetel 68.

The hleoes 32 are separated and form grooves so that the blades on the members mounted upon one shaft will accurately the grooves termed in the members of the other shaft.

The axes of the shafts 23 are located a distance apart equal to the diameter of the body portion of a member 29, plus the depth blade 32 so that when the shafts 23 are rotated the outer cylindrical faces 33 of the blades will bear a ainst and be in rolling contact with the bottom faces 34 of the grooves while the inclined walls of said loledes will contact accurately with the in clined wells of the particular blades of members on the other shaft with which they ma be con icting, previously mated the members on each work in pairs, one member of each right hand blades while the,

. 4 other has lezithend blades.

' l't hen the two members of each pair are positioned relatively each other, the ad'- iecent ends of the blades 32 will meet at a very acute tingle forming a ll-shaped portion 35$,with a sharp edge 36 curved downweirdly the periphery of the body portion of member 22 as shown in Fig. 4.

W hen the pump is in operation the shafts are rotated in the direction of the arrows a on 2 oii the drawings. At the lower intersection ofthe walls of said chambersl'l, the casing 1S proyided with a part1 plow through the material into the'grooves A fitting the cylindrical walls of the neutralized. i

menu

to be carried thereby in the inlet passage 14 and force said material through the charmbers 11 from which it will be discharged through the outlet passage 15.

The blades 32 are so disposed upon the members 29 that the rear ends of the blades on one section 29 join the rear ends of the blades upon a contiguous section and form V-shaped pockets, the apexes of which. are indicated at 38. 1 i

As the members 29 rotate these V-shaped pockets will be successively filled with -material and as there is no means for the ma I terial to escapelallof said material will be.

carried by the blades 32 into-the discharge outlet 15.

when the pump is started the pockets will be filled with air and a suction created which will draw the material into and fill the inlet Should there be no material in the inlet passage, and this suction will be maintained v durin the o ration of the pump. As t e mem ers rotate and the pockets approach the outlet the blades 32 of one member 29 in their downward movement will enter the grooves in the coacting memher and will completely fill the same in the plane of the axes of the shafts 23, so that.

no material can pass downwardly between the members 29 into the inlet passage 24.

As the sharp edge 36 of each V-shaped portion of one member enters the pocket of the opposed member it will gradually force from said pocket all the material car ried therein, this material being forced upwardly into the outlet passage 15. y

When the sharp ed cs 36 of one set of members 29 reaches t e apexes 38 of the pockets, on the companion members all of' the 7 material will have been completely forced therefrom.

' Owin I gularly isposed in opposite directions upon the members 29, there isabsolutely no end thrust on the shafts 23,1111 end thrust being gradually but to the various blades 32 being anlit Preferably material entering theinlet? passage 14- is strained priorto admissiontheret0, but as the strainer forms nopart of the present invention, it is deemed' -unneoes sary to. show or describethe seine.- I

The :walls of the inlet passage '14 parallel to the shafts 23 are in the same lane with the axesof said shafts so that a ll supply of material may be admitted to the pockets of the members 29 just prior to the upward movement of said pockets in the rotation of these members 29 in the semi cylindrical chambers 11.

While the verious sections of the members 29 are somewhat in the form of worms, they are not worms and do not act in a similar manner as the blades 32 are not constructed so as to permit them to coact with a worm gear. i

with fiat sides which cannot'be constructed on any gear cutting or worm cutting mav t e outlet 15 without an depressions.

. Having th described my. claim--f' v v in; a lurality of members within said chem-'3 cries of theb chine but special machinery is required to fOI'lID them.

The fiat sides of the blades 32 of one member 29 have a rolling contact with the flat sides of the grooves of another member 29, the entire surfaces being in contact at all times so that there is absolutely no chance for leakage by the blades as the material in the grooves approaches the outlet 15.

Consequent all materialentering the 1n- 7 let M is discharged without loss through said outlet 15.

The combined area of the grooves of each member 29 is the same in every plane radialv to the axis of said member.

In other words when material enters the grooves or pockets of the members 29 the same amount is always enterin these dedepressions and as the members 29 rotate the blades 32 will force ahead of them the same uantities of'material from the inlet 14 to.

material and with no. unfi led space in said As a consequence i this construction the pump is perfectly noiseless when in 0 tion and a continuous stream of mater al is discharged of unvarying amount at all times. This makes a very simple device for pump. ing liquid which is most'efiective in opera tion.

invention,

1. In a device'of the class described, the combination ola casing having oppositely disposed inlet and outlet passages commune catmg'with semircylindrical chambers therebers aving oppositely disposed separated blades forming angular grooves, the periphades of each member contact "'ing with the interior wall of a chamber and having a rolling contact with the bottoms of the grooves in the other member and means tor rotating said members in opposite direc-' ti'ons.

. 21in a device of the class described, the cmnhinsntion of a casing having oppositely disposed inlet and outlet passages communitill eating with semi-cylindrical chambers therein; a plurality of members within each cham her having oppositely disposed angular 7' blades with hat inclined sides and iorming grooves to receive the blades of the members in the other chamber, the'peripheries of said blades of the members in one chamber having a rolling contactwith the bottoms of the grooves of the members in the other cham' her; and means for rotating said members in opposite directions.

3. in a device of the class described, the

compression of rotation of said members, the blades of the members in i one chamber forming grooves to receive and accurately fitting the blades of the members in the other chamber and. with which blades tact; and means .for rotating said members in opposite directions. 3 4. In a' device of-the class described, the

the walls of said grooves are in rolling coni I combination on casing having oppositely eat ng with semi-c lindrical chambers therein; a series of bla ed sections in each cham-y her, the blades of alternate sections being oppositely disposed with wide peripheries pressione regardless of the posltlon of said contacting with thewall of said chamber audin rolling contact with the bottoms of the grooves in thesections disposed in the other chamber; and means for rotating the combination of a casing having oppositely disposed inlet and outlet passages com mumcatmgwith semi-cylindrical chambers therein cylindrical members in each chamber harm a plurality of blades thereon at acute ang es to each other and having wide peripheral surfaces in rolling contact with the cylindrical body portions of the'memdisposed inlet and outlet passages commumi here in the other chamber, the blades of one member accuratel fitting the grooves formed by the bla es ofthe other member; and means for rotating said members.

6. In a device of the class described, the

combination of a casing having oppositely disposedinlet and outlet passages c0mmun1- eating with semi-c lindrical chambers therein; a plurality 0 members in each chamber rov1ded with oppositely disposed separate blades extending to the inner wall of said chamber and forming grooves at a very acute angle to the ends of said members, the blades of the members in one chamber fitting accurately the grooves ofthe members in the other chamber with the peripheral surfaces of said blades in rolling contact with the bottoms of said grooves; and means for rotating said members.

7. In a device of the class described, the

combination of a casing having oppositely disposed inlet and outlet passages communicating with semi-cylindrical chambers therein; members in each chamber having blades op ositely disposed thereon at an acute ang e to each other and forming rooves to receive the blades of the meIn-f ers in the other chamber, the entire surfaces of said blades having a rollin contact with. the walls of said grooves and t e peripheries llli means for rotating said members.

of said blades beingfiwide and in contact with the inner walls of said chamber; and

8. In a device of the class described, the combination of a casing having oppositely disposed inlet and outlet passages communieating with semi-cylindrical chambers therein; members in each chamber having blades oppositely disposed thereon at an angle of approximately sixty eight degrees to the axis of rotation of said members, forming grooves to receive the blades of the members in the other chamber, the entire surfaces of said blades having a rolling contact with the walls of said grooves and the peripheries of said blades being'wide and in contact with the inner walls of said chambers; and means for rotating said members.

9. In a device of theclass described, the combination of a casing having oppositely disposed passages communicating with semicylindrical chambers therein; a plurality of members Within said chamber in rolling contact and having peripheral pockets adapted to convey material from the inlet to the outlet, said members each being provided with means: for forcing the material from said pockets as they approach the outlet; and means for rotating said! members in opposite directions.

10. In a device of the class described, the combination of a casing having oppositely disposed passages communicating with semi-cylindrical chambers therein; a plurality of members within each chamber in rolling contact and having V-shaped pockets to receive material from said inlet and convey it to said outlet, and projecting blades between said pockets, the peripheries of which have a rolling contact with the bottoms of the pockets of the members in the other chamber; and means for rotating said members in op osite directions.

' 11 In a device of the class described, the combination of a'casing having oppositel disposed passages communicating witi semi-cylindrical chambers therein; a plurality of members in each chamber having peripheral blades oppositely disposed thereon at an an le of approximately sixty-eight degrees to tile axis of rotation of said members, the blades of the members in one chamber forming V-shaped ockets to receive and accurately fitting the blades of the members in the other chamber, and means for rotating said members in opposite directions.

12. In a device of. the class described, the combination of a casing having op ositely disposed passages communicating wit semicylindrical chambers therein; a series of bladed sections in each chamber, the blades, of alternate sections being oppositely disposed with wide peripheries contacting with the wall of said chambers and in rolling contact with the bottoms of the grooves in each other and forming the sections disposed in the other chamber; rods extending through the sections of each series; and means for rotating the two series of sections in oppositedirections.

13. In a device of the class described, the cpmbination of a casing having oppositely disposed passages communicating with semicylindrical chambers therein; cylindrical members in said chambers in rolling contact and having a plurality of peripheral pockets, each member having peripheral projections adapted to enter the pockets in the other member and force the material therefrom in a direction tangential to the peripheries of said members and toward the outlet; and means for rotating said members.

14 In a device of the class described, the combination of a casing having oppositely disposed passages communicating with semicylindrical chambers therein; cylindrical members in said chambers in rolling contact, the member in each chamber being in a plurality of sections and provided with oppositely disposed separated blades extending to the inner wall of said chamber, the blades of the members in one chamber fitting accural'ely the grooves of the members in the other chamber with the outer ends of the blades on one section joining those on a contiguous section at a very acute angle; and means for rotating said members.

15. In a device of the class described, the combination of a casing having oppositel disposed passages communicating with semicylindrical chambers therein; cylindrical members in said chambers in rolling contact, the member in each chamber being in a plurality of sections and provided with ogpositely disposed separated blades exten ing to the inner wall of said chamber, the blades of the members in one chamber fitting accurately the grooves of the members in the other chamber with the outer ends of the blades on one section joining those on a contiguous section at a very acute angle, and forming a sharp curved edge extending from the hubsof said members to the cylindrical faces of said blades; and means for rotating said members.

16. In a device of the class described, the combination of a casing having oppositely disposed inlet and outlet passages communieating with semi-cylindrical chambers therein, said inlet passage having a width equal to the distance between the centers of said chambers; members in each chamber having blades disposed thereon at an acute angle to rooves to receive the blades of the members in the other chamber, the entire surfaces of said blades havin a rolling contact with the walls of said grooves and the peripheries of said blades being in contact with the inner walls of said chambers; a partition extending transversely of the inlet passage dividing the inflowing LMWJMEI iim'leriel and ceusing it to enter both chambers; and means for misting seid members.

if! Elm device of the class described, the ecmbiiieitisn of e casing having ogpositely disposed passages communicating with semieylindiicel cliembers therein and. cylindrical beeesses in the inner faces of its end Walls; members each chamber having engulerly blades thereon, forming grooves 1m .c ceive the blades of the members in the mile? eh.zucebeix the entire surfaces of said blades heving a rolling contactwith the Walls of said moves and the peripheries of said blades being in contact with the inner Walls of said chambers, said members having 15 their opposite ends disposed in said recesses; and means for rotating said members.

Signed by meat 746 Old South Bldg, Boston, Mass, this 28th day of November, 1924.

J USTUS R. KINNEY 

